4640993567551 has 16 divisors (see below), whose sum is σ = 5232681907200. Its totient is φ = 4077938347200.

The previous prime is 4640993567527. The next prime is 4640993567563. The reversal of 4640993567551 is 1557653990464.

It is a cyclic number.

It is not a de Polignac number, because 4640993567551 - 2²¹ = 4640991470399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640993562551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8135721 + ... + 8687458.

It is an arithmetic number, because the mean of its divisors is an integer number (327042619200).

Almost surely, 2^{4640993567551} is an apocalyptic number.

4640993567551 is a deficient number, since it is larger than the sum of its proper divisors (591688339649).

4640993567551 is a wasteful number, since it uses less digits than its factorization.

4640993567551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16824030.

The product of its (nonzero) digits is 122472000, while the sum is 64.

The spelling of 4640993567551 in words is "four trillion, six hundred forty billion, nine hundred ninety-three million, five hundred sixty-seven thousand, five hundred fifty-one".